Sounds like a good idea! I was at SVHFS last week and there was a lot of discussion and design effort toward GPS derived frequency control for EME and microwave roamers. -- Joe Leikhim K4SAT "The RFI-EMI-GUY"© "Treason doth never prosper: what's the reason? For if it prosper, none dare call it treason." "Follow The Money" ;-P